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Btrfs: sha256 csums on metadata

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason
2007-03-28 19:44:27 -04:00
committed by David Woodhouse
parent d98237b3ed
commit 87cbda5c1f
3 changed files with 67 additions and 7 deletions
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8
fs/btrfs/ctree.h
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@@ -51,11 +51,11 @@ struct btrfs_key {
* every tree block (leaf or node) starts with this header.
*/
struct btrfs_header {
__le32 csum[8];
u8 fsid[16]; /* FS specific uuid */
__le64 blocknr; /* which block this node is supposed to live in */
__le64 generation;
__le64 parentid; /* objectid of the tree root */
__le32 csum;
__le32 ham;
__le16 nritems;
__le16 flags;
@@ -75,9 +75,10 @@ struct buffer_head;
* it currently lacks any block count etc etc
*/
struct btrfs_super_block {
__le32 csum[8];
/* the first 3 fields must match struct btrfs_header */
u8 fsid[16]; /* FS specific uuid */
__le64 blocknr; /* this block number */
__le32 csum;
__le64 magic;
__le32 blocksize;
__le64 generation;
@@ -217,6 +218,7 @@ struct btrfs_inode_map_item {
struct btrfs_disk_key key;
} __attribute__ ((__packed__));
struct crypto_hash;
struct btrfs_fs_info {
struct btrfs_root *fs_root;
struct btrfs_root *extent_root;
@@ -236,6 +238,8 @@ struct btrfs_fs_info {
struct inode *btree_inode;
struct mutex trans_mutex;
struct mutex fs_mutex;
struct crypto_hash *hash_tfm;
spinlock_t hash_lock;
};
/*